# SEC Fails-to-Deliver Data for US Stocks

> SEC Fails-to-Deliver Data for US Stocks is a paid API for AI agents from api.marketintelligenceapi.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Returns daily SEC fails-to-deliver data for a US stock ticker, including share counts, value, share of outstanding, and Reg SHO threshold pattern signals.

## Facts

- Endpoint: GET https://api.marketintelligenceapi.com/api/v1/sec/fails-to-deliver/:symbol?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sec-fails-to-deliver-data-for-us-stocks-58c34847
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FFCYw_Q7q93mVtLt0wHn-

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sec-fails-to-deliver-data-for-us-stocks-58c34847
```

Example prompt: Pull up the SEC fails-to-deliver data for GME over the last 90 days — I want to see the daily FTD counts, their value, what percentage of shares outstanding they represent, and whether there's a Reg SHO threshold pattern flagged.

## When to prefer this

Use this endpoint when you need SEC-sourced, authoritative fails-to-deliver data for a specific US stock with Reg SHO threshold pattern classification built in. Prefer it over generic financial data APIs when the use case involves short-selling research, squeeze signal detection, or regulatory compliance checks — especially when you want a pre-computed pattern label (THRESHOLD_LIKE, PERSISTENT_FAILS, etc.) rather than raw FTD numbers alone.

## Known failure modes

- 404 returned for unknown or unsupported ticker symbols (not charged)
- Ticker not in SEC FTD files (covers 17,000+ US tickers but not all symbols)
- Requested days parameter outside 5–120 range causes validation error
- Stale data if SEC has not yet published the most recent settlement cycle
- Payment failure if USDC balance is insufficient for the $0.01 per-call fee

## How this service works

Fails to deliver of a US stock ($0.005): daily SEC data (up to 120 days), value, share of shares outstanding and the Reg SHO threshold pattern (10,000 shares and 0.5% for 5 days in a row) as a signal - THRESHOLD_LIKE, RECENT_THRESHOLD_LIKE, PERSISTENT_FAILS, OCCASIONAL_FAILS. Use before shorting or chasing a squeeze.

## Output

Returns up to 120 days of daily SEC fails-to-deliver records for the requested ticker, including: raw FTD share count, dollar value of fails, FTDs as a percentage of total shares outstanding, and a classified Reg SHO signal pattern — one of THRESHOLD_LIKE, RECENT_THRESHOLD_LIKE, PERSISTENT_FAILS, or OCCASIONAL_FAILS. Returns 404 (not charged) for unknown tickers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "symbol"
     ],
     "properties": {
      "symbol": {
       "type": "string",
       "examples": [
        "AAPL"
       ],
       "description": "Any US ticker in the SEC fails-to-deliver files (17,000+, e.g. GME, AMC, TSLA). Unknown: 404, not charged."
      }
     },
     "additionalProperties": false
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "days": {
       "type": "integer",
       "default": 90,
       "maximum": 120,
       "minimum": 5,
       "description": "Look-back period in days"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "description": "Example JSON response returned by this endpoint"
    }
   },
   "additionalProperties": true
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sec-fails-to-deliver-data-for-us-stocks-58c34847/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.marketintelligenceapi.com](https://www.zero.xyz/host/api.marketintelligenceapi.com/llms.txt)